if the CP of 10 tubelight is equal to the SP of 8 tubelight find the gain or loss percent
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let total C.P=80 RS,
C.P of 10 tube light=80rs.
then
C P of 1 tube light=8 rs.
S.P of 8 tube light =80 rs.
then
S.P of 1 tube light =10 rs.
then
profit=10-8=2 rs.
then
%profit=2/8×100=25%
C.P of 10 tube light=80rs.
then
C P of 1 tube light=8 rs.
S.P of 8 tube light =80 rs.
then
S.P of 1 tube light =10 rs.
then
profit=10-8=2 rs.
then
%profit=2/8×100=25%
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